"My wife did not take anything on the morning of her death that would have caused her to be sick or ill, let alone die," Brit screenwriter Simon Monjack tells theNew York Daily News. "It's beyond even the sickest speculation."

Monjack confirmed that investigators took away a lot of prescription meds, "but nothing else," and denied rumors that the 32-year-old actress had a drug problem.

"There's no question that's rubbish," Monjack said. "I'm confident it wasn't an overdose," he added when asked how she died (toxicology report results won't be available for about six weeks). "She was not a drug addict."